Face shield for helmet



FIG. 1 is a front elevation view of a face shield for a helmet showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a perspective view thereof. 

CLAIM The ornamental design for a face shield for a helmet, as shown and described. 